After Sean Hannity rolled-out the late Andrew Breitbart's "big" video reveal of a young Barack Obama hugging controversial Harvard professor Derrick Bell, Jon Stewart reminds Hannity that there's more recent footage he could have used to make Obama look bad. There's Obama being cozy with that other controversial Harvard professor, Larry Summers, his former economic adviser. Or the president going on record saying he would close Guantanamo Bay. Stewart suggests that just because the president appeared with someone doesn't mean he believes everything that person says. Hannity should know: He's appeared with his fair share of radicals.